A novel core-shell structure reinforced Zr-based metallic glass composite with combined high strength and good tensile ductility

Cheng, Jialin; Wang, Jingjing; Yun, Yeling; Rui, Jiaxin; Zhao, Wei; Li, Feng

doi:10.1016/j.jallcom.2019.06.310

Cited by 22 publications

(4 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They proposed two basic principles based on matching fundamental micromechanical characteristics and microstructural length scales to design the ductile BMG composites, which were: (1) introduction of 'soft' elastic/plastic inhomogeneities to initiate local shear banding; and (2) matching of microstructural length scales to the characteristic length scale R P (plastic shielding of an opening crack tip) to suppress the instability propagation of shear bands and micro-cracks. Subsequently, numerous ductile BMG composites with large tensile plasticity were developed [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Tensile Plasticity in Ultrafine Lamellar Eutectic Al-CuBased Composites with α-Al Dendrites Prepared by Progressive Solidification

2019

Self Cite

View full text Add to dashboard Cite

In this paper, a new class of Al-Cubased composites which combine the ultrafine lamellar eutectic matrix (α-Al + θ-Al2Cu) and micron-sized primary α-Al dendrites was prepared by progressive solidification. By adjusting the alloy composition and solidification process, the formation of favorable microstructural and micromechanical features can be achieved. The ultrafine lamellar eutectic composite Al94Cu6 exhibits excellent mechanical properties with 472 MPa fracture strength and 7.4% tensile plastic strain. The plasticity of the ultrafine lamellar eutectic composite relies on the volume fraction and work hardening ability of micron-scale primary phase. The present results provide a new perspective for improving the plasticity of the ultrafine lamellar eutectic alloys.

show abstract

Section: Introductionmentioning

confidence: 99%

Enhanced Tensile Plasticity in Ultrafine Lamellar Eutectic Al-CuBased Composites with α-Al Dendrites Prepared by Progressive Solidification

2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…To provide some examples, Zhang et al [19] indicated that the stress-induced transformation of the crystalline phase in a Ti-based MG improved the strain hardening capability and the resistance to the main shear band propagation. Cheng et al [20] proposed a novel coreshell structure-reinforced Zr-based MGC with the good tensile ductility and high strength. ey found that the simultaneous formation of α-Zr core and β-Zr shell in the glassy structure was the main reason for improving the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Role of Glass Composition on Mechanical Properties of Shape Memory Alloy‐Metallic Glass Composites

Chupradit

Raya

Huy

et al. 2021

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

In this work, the molecular dynamics (MD) simulation was applied to design a laminated composite structure comprised of the shape memory alloy (SMA) and Cu-Zr metallic glasses (MGs). A wide range of MG compositions was considered to tune the mechanical features and improve the homogenous plastic deformation during the tension loading. The results indicated that the martensitic transformation in the SMA inhibited the sudden shear band propagation in the composite for all the samples. Moreover, it was revealed that the mechanism of plasticity was significantly affected by the change of MG composition. In the Cu-rich MGs, the formation and propagation of thick shear bands occurred at the end of the tension loading; however, the increase in Zr content induced the interaction of multiple shear bands with finer configurations in the system. Nevertheless, the excessive Zr addition in the MG composition facilitated the aggregation of nanopores at the interface of SMA and MGs, which may be due to the softening effect in the Zr-rich MGs. Finally, it is concluded that an optimized MG composition is required for the trade-off between the plasticity and the strength in the SMA-MG composites.

show abstract

“…They have also been used for electronics and energy applications such as solar cells, energy storage, batteries, photovoltaics, fuel cells and sensors, as they enhance electrical conductivity and electrical properties in general [15][16][17][18][19][20]. However, the majority of core-shell materials concern engineering applications such as mechanical reinforcements, where they are used as fillers for their high strength and tensile performance [21] as well as for their high interfacial strength between the cell and the core [22]. They are also used for toughening epoxy resins [23].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of a Core-Shell Copolymer with Different Glass Transition Temperatures

Goulis

Kartsonakis

Charitidis

2020

Fibers

View full text Add to dashboard Cite

The aim of this study is to synthesize an organic core-shell co-polymer with a different glass transition temperature (Tg) between the core and the shell that can be used for several applications such as the selective debonding of coatings or the release of encapsulated materials. The co-polymer was synthesized using free radical polymerization and was characterized with respect to its morphology, composition and thermal behavior. The obtained results confirmed the successful synthesis of the co-polymer copolymer poly(methyl methacrylate)@poly(methacrylic acid-co-ethylene glycol dimethacrylate), PMMA@P(MAA-co-EGDMA), which can be used along with water-based solvents. Furthermore, the Tg of the polymer’s core PMMA was 104 °C, while the Tg of the shell P(MAA-co-EGDMA) was 228 °C, making it appropriate for a wide variety of applications. It is worth mentioning that by following this specific experimental procedure, methacrylic acid was copolymerized in water, as the shell of the copolymer, without forming a gel-like structure (hydrogel), as happens when a monomer is polymerized in aqueous media, such as in the case of super-absorbent polymers. Moreover, the addition and subsequent polymerization of the monomer methyl methacrylate (MAA) into the mixture of the already polymerized PMMA resulted in a material that was uniform in size, without any agglomerations or sediments.

show abstract

A novel core-shell structure reinforced Zr-based metallic glass composite with combined high strength and good tensile ductility

Cited by 22 publications

References 29 publications

Enhanced Tensile Plasticity in Ultrafine Lamellar Eutectic Al-CuBased Composites with α-Al Dendrites Prepared by Progressive Solidification

Enhanced Tensile Plasticity in Ultrafine Lamellar Eutectic Al-CuBased Composites with α-Al Dendrites Prepared by Progressive Solidification

Role of Glass Composition on Mechanical Properties of Shape Memory Alloy‐Metallic Glass Composites

Synthesis and Characterization of a Core-Shell Copolymer with Different Glass Transition Temperatures

Contact Info

Product

Resources

About